====================================================================== BAT GRB EVENT DATA PROCESSING REPORT Process Script Ver: batgrbproduct v2.46 Process Start Time: Fri Jun 12 00:53:44 EDT 2015 Host Name: bat1 Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger526351 ====================================================================== Trigger: 00526351 Segment: 000 BAT Trigger Time: 363793356.8 [s; MET] Trigger Stop: 363793357.824 [s; MET] UTC: 2012-07-12T13:42:27.382260 [includes UTCF correction] Where From?: TDRSS position message BAT RA: 169.60548368771 Dec: -20.0607384702281 [deg; J2000] Catalogged Source?: NO Point Source?: YES GRB Indicated?: YES [ by BAT flight software ] Image S/N Ratio: 11.6 Image Trigger?: NO Rate S/N Ratio: 20.4694894904587 [ if not an image trigger ] Image S/N Ratio: 11.6 Analysis Position: [ source = BAT ] RA: 169.60548368771 Dec: -20.0607384702281 [deg; J2000] Refined Position: [ source = BAT pre-slew burst ] RA: 169.598341106773 Dec: -20.0508031513664 [deg; J2000] { 11h 18m 23.6s , -20d 03' 02.9" } +/- 0.905939596473807 [arcmin] (estimated 90% radius based on SNR) +/- 0.407822071365021 [arcmin] (formal 1-sigma fit error) SNR: 35.0271802338161 Angular difference between the analysis and refined position is 0.719318 arcmin Partial Coding Fraction: 0.5546875 [ including projection effects ] Duration T90: 14.8079999685287 +/- 3.2362150653343 Measured from: -2.44800001382828 to: 12.3599999547005 [s; relative to TRIGTIME] T50: 6.89199995994568 +/- 0.529104881367349 Measured from: 0.567999958992004 to: 7.45999991893768 [s; relative to TRIGTIME] Fluence Peak Flux (peak 1 second) Measured from: 7.50800001621246 to: 8.50800001621246 [s; relative to TRIGTIME] Total Fluence Measured from: -4.57200002670288 to: 16.527999997139 [s; relative to TRIGTIME] Band 1 Band 2 Band 3 Band 4 15-25 25-50 50-100 100-350 keV Total 0.592167 1.027070 0.866299 0.199232 0.037174 0.039715 0.035552 0.028562 [error] Peak 0.057736 0.108833 0.108565 0.023115 0.008818 0.009842 0.009176 0.007111 [error] [ fluence units of on-axis counts / fully illuminated detector ] ====================================================================== ====== Table of the duration information ============================= Value tstart tstop T100 21.100 -4.572 16.528 T90 14.808 -2.448 12.360 T50 6.892 0.568 7.460 Peak 1.000 7.508 8.508 ====== Spectral Analysis Summary ===================================== Model : spectral model: simple power-law (PL) and cutoff power-law (CPL) Ph_index : photon index: E^{Ph_index} Ph_90err : 90% error of the photon index Epeak : Epeak in keV Epeak_90err: 90% error of Epeak Norm : normalization at 50 keV in both the PL model and CPL model Nomr_90err : 90% error of the normalization chi2 : Chi-Squared dof : degree of freedo === Time-averaged spectral analysis === (Best model with acceptable fit: PL) Model Ph_index Ph_90err_low Ph_90err_hi Epeak Epeak_90err_low Epeak_90err_hi Norm Nomr_90err_low Norm_90err_hi chi2 dof PL -1.364 -0.076 0.076 - - - 8.97e-03 -3.89e-04 3.89e-04 62.410 57 CPL -0.989 -0.295 0.316 144.267 -42.815 290.416 1.35e-02 -3.65e-03 5.39e-03 57.600 56 === 1-s peak spectral analysis === (Best model with acceptable fit: CPL) Model Ph_index Ph_90err_low Ph_90err_hi Epeak Epeak_90err_low Epeak_90err_hi Norm Nomr_90err_low Norm_90err_hi chi2 dof PL -1.146 -0.153 0.156 - - - 2.04e-02 -1.95e-03 1.95e-03 67.360 57 CPL -0.134 -0.678 0.804 99.698 -22.920 88.736 6.13e-02 -3.14e-02 7.89e-02 60.410 56 === Fluence/Peak Flux Summary === Model Band1 Band2 Band3 Band4 Band5 Total 15-25 25-50 50-100 100-350 15-150 15-350 keV Fluence PL 2.13e-07 4.25e-07 6.61e-07 2.26e-06 1.84e-06 3.56e-06 erg/cm2 90%_error_low -1.72e-08 -2.09e-08 -3.49e-08 -2.54e-07 -8.67e-08 -2.77e-07 erg/cm2 90%_error_hi 1.77e-08 2.08e-08 3.48e-08 2.75e-07 8.69e-08 2.95e-07 erg/cm2 Peak flux PL 5.99e-01 7.44e-01 6.73e-01 1.06e+00 2.38e+00 3.07e+00 ph/cm2/s 90%_error_low -1.05e-01 -8.47e-02 -7.14e-02 -2.13e-01 -2.34e-01 -3.07e-01 ph/cm2/s 90%_error_hi 1.11e-01 8.39e-02 7.09e-02 2.44e-01 2.35e-01 3.11e-01 ph/cm2/s Fluence CPL 1.97e-07 4.39e-07 6.82e-07 1.36e-06 1.80e-06 2.68e-06 erg/cm2 90%_error_low -2.09e-08 -2.37e-08 -3.92e-08 -4.20e-07 -9.38e-08 -4.25e-07 erg/cm2 90%_error_hi 2.14e-08 2.40e-08 3.97e-08 6.56e-07 9.35e-08 6.50e-07 erg/cm2 Peak flux CPL 4.79e-01 8.02e-01 7.47e-01 4.33e-01 2.30e+00 2.46e+00 ph/cm2/s 90%_error_low -1.26e-01 -9.87e-02 -8.82e-02 -1.82e-01 -2.41e-01 -3.08e-01 ph/cm2/s 90%_error_hi 1.33e-01 1.01e-01 9.05e-02 3.30e-01 2.41e-01 3.83e-01 ph/cm2/s ======================================================================
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name 169.5983 -20.0508 0.0055 31.3215 154.6746 2.6738483 35.027 TRIG_00526351 Foreground time interval of the image: -4.572 14.901 (delta_t = 19.473 [sec]) Background time interval of the image: -239.800 -4.572 (delta_t = 235.228 [sec])
Note: The mask-weighted lightcurves have units of either count/det or counts/sec/det, where a det is 0.4 x 0.4 = 0.16 sq cm.
Time interval is from -4.572 sec. to 16.528 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.36422 ( -0.0762877 0.0764958 ) Norm@50keV : 8.97358E-03 ( -0.000389481 0.000389453 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 62.41 using 59 PHA bins. # Reduced chi-squared = 1.095 for 57 degrees of freedom # Null hypothesis probability = 2.900982e-01 Photon flux (15-150 keV) in 21.1 sec: 1.08429 ( -0.04954 0.04962 ) ph/cm2/s Energy fluence (15-150 keV) : 1.84367e-06 ( -8.66645e-08 8.69333e-08 ) ergs/cm2
Time interval is from -4.572 sec. to 16.528 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -0.988894 ( -0.295386 0.315956 ) Epeak [keV] : 144.267 ( -42.8157 290.416 ) Norm@50keV : 1.35311E-02 ( -0.00364922 0.00538972 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 57.60 using 59 PHA bins. # Reduced chi-squared = 1.029 for 56 degrees of freedom # Null hypothesis probability = 4.156178e-01 Photon flux (15-150 keV) in 21.1 sec: 1.06401 ( -0.05189 0.05195 ) ph/cm2/s Energy fluence (15-150 keV) : 1.80112e-06 ( -9.38482e-08 9.35023e-08 ) ergs/cm2
Time interval is from 7.508 sec. to 8.508 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.14586 ( -0.153172 0.156256 ) Norm@50keV : 2.04087E-02 ( -0.00195164 0.00195081 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 67.36 using 59 PHA bins. # Reduced chi-squared = 1.182 for 57 degrees of freedom # Null hypothesis probability = 1.639036e-01 Photon flux (15-150 keV) in 1 sec: 2.37891 ( -0.23416 0.23465 ) ph/cm2/s Energy fluence (15-150 keV) : 2.10383e-07 ( -2.16751e-08 2.17784e-08 ) ergs/cm2
Time interval is from 7.508 sec. to 8.508 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -0.133648 ( -0.678354 0.804405 ) Epeak [keV] : 99.6984 ( -22.9194 88.7358 ) Norm@50keV : 6.13118E-02 ( -0.031364 0.0788956 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 60.41 using 59 PHA bins. # Reduced chi-squared = 1.079 for 56 degrees of freedom # Null hypothesis probability = 3.196285e-01 Photon flux (15-150 keV) in 1 sec: 2.29954 ( -0.24109 0.24115 ) ph/cm2/s Energy fluence (15-150 keV) : 1.9932e-07 ( -2.33778e-08 2.33901e-08 ) ergs/cm2
T90 = 14.808 sec. Hardness ratio (energy fluence ratio) = 1.55378216922
S(15-50 keV) = 6.380585e-07 S(50-150 keV) = 1.2056234e-06
The dash-dotted line and the dashed line traces the fluences calculated from the Band function with Epeak = 15 and 150 keV, respectively. Both lines assume a canonical values of alpha = -1 and beta = -2.5.
IMX = -5.500395652468303E-01, IMY = -2.603010638826990E-01
Time interval of the image: -239.800000 -4.572000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 135.5230 -40.5710 23.6 55.3 -165.4 0.3209 0.5 1.0 Vela X-1 179.2594 -35.6535 2.6 49.0 151.3 3.0364 4.4 ------ UNKNOWN 166.1244 -42.4753 2.4 52.6 166.4 3.6187 4.8 ------ UNKNOWN 125.9360 -38.5098 3.5 57.9 -156.8 3.9294 3.3 ------ UNKNOWN 127.2195 54.8976 3.0 52.0 -31.4 2.2410 3.9 ------ UNKNOWN
Time interval of the image: -4.572000 14.900590 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 135.5215 -40.4889 15.5 55.2 -165.4 -0.1471 -0.7 4.0 Vela X-1 169.5984 -20.0508 0.3 31.3 154.7 2.6734 34.9 ------ UNKNOWN 118.6325 -2.0577 2.0 43.0 -111.9 1.1261 5.7 ------ UNKNOWN
Time interval of the image: 74.100600 962.313100 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 135.6112 -40.4126 153.9 35.4 -166.2 0.0243 0.1 9.3 Vela X-1 170.2906 -60.5816 5.2 40.5 146.0 1.4839 2.2 2.6 Cen X-3 186.6506 -62.7696 69.8 44.3 135.4 -0.1845 -0.2 0.2 GX 301-2 128.9995 -43.1839 1.5 41.0 -167.2 3.1447 7.8 ------ UNKNOWN 105.2056 -38.2555 3.8 57.9 -156.8 5.5015 3.0 ------ UNKNOWN